Dearborn, Missouri sales tax rate: 5.475%
Last updated Checked monthly
The sales tax rate in Dearborn, Missouri is 5.475%. That’s the 4.225% state rate plus 1.25% in local taxes. It’s higher than 39 of the 228 Missouri cities we checked, and 5 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Dearborn combined rate
5.475%
- Missouri state
- 4.225%
- Platte CountyCounty
- 1.25%
Dearborn sales tax calculator
Enter a price and what you’re selling.
- MissouriState · 4.225%$4.23
- Platte CountyCounty · 1.25%$1.25
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoDearborn sales tax rate breakdown
State and county taxes add up to 5.475%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Missouri | State | 4.225% |
| Platte County | County | 1.25% |
| Combined rate | 5.475% |
Rate history
- July 20235.6%
- July 20245.475%
- July 20255.475%
- July 20265.475%
- Today5.475%
Changed since July 2023.
Sales tax near Dearborn
Closest cities
Elsewhere in Platte County
- Platte City7.85%
- Riverside6.975%
Charge the right rate in Dearborn, on every order.
Zamp calculates tax at each customer’s address, then files and pays every Missouri return for you, with a sales tax team you can call.
Dearborn sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Dearborn, Missouri?
The combined sales tax rate in Dearborn is 5.475% as of November 2, 2026. It’s made up of 4.225% Missouri state tax, 1.25% Platte County.
Does the sales tax rate vary within Dearborn?
Dearborn has no special-district taxes, so most addresses in the city pay the same 5.475%: Missouri’s 4.225% plus 1.25% county tax. This rate was calculated for Dearborn’s 64439 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Dearborn?
No.
Do online sellers have to collect sales tax in Dearborn?
Yes, if they have nexus in Missouri: more than $100,000 in Missouri sales in the previous or current calendar year, or a physical presence in the state. They register with the Missouri Department of Revenue and charge the rate at the buyer’s address.
Sources. Missouri Department of Revenue · Zamp Sales Tax API, for Dearborn’s 64439 ZIP code. Rates are checked monthly and are for information, not tax advice.
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